2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/decoder.h
21 * @brief Parent class for decoders of content.
24 #ifndef DVDOMATIC_DECODER_H
25 #define DVDOMATIC_DECODER_H
30 #include <boost/shared_ptr.hpp>
31 #include <boost/signals2.hpp>
34 #include "video_source.h"
35 #include "audio_source.h"
48 * @brief Parent class for decoders of content.
50 * These classes can be instructed run through their content (by
51 * calling ::go), and they emit signals when video or audio data is
52 * ready for something else to process.
57 Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const DecodeOptions>, Job *);
58 virtual ~Decoder () {}
60 virtual bool pass () = 0;
62 * @return true on error.
64 virtual bool seek (SourceFrame);
66 boost::signals2::signal<void()> OutputChanged;
70 boost::shared_ptr<Film> _film;
72 boost::shared_ptr<const DecodeOptions> _opt;
73 /** associated Job, or 0 */
77 virtual void film_changed (Film::Property) {}
79 boost::signals2::scoped_connection _film_connection;